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Hadkar VM, Mohanty C, Selvaraj CI. Biopolymeric nanocarriers in cancer therapy: unleashing the potency of bioactive anticancer compounds for enhancing drug delivery. RSC Adv 2024; 14:25149-25173. [PMID: 39139249 PMCID: PMC11317881 DOI: 10.1039/d4ra03911d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 07/31/2024] [Indexed: 08/15/2024] Open
Abstract
Effective cancer treatment is becoming a global concern, and recent developments in nanomedicine are essential for its treatment. Cancer is a severe metabolic syndrome that affects the human population and is a significant contributing factor to deaths globally. In science, nanotechnology offers rapidly developing delivery methods for natural bioactive compounds that are becoming increasingly prominent and can be used to treat diseases in a site-specific way. Chemotherapy and radiotherapy are conventional approaches for preventing cancer progression and have adverse effects on the human body. Many chemically synthesized drugs are used as anticancer agents, but they have several side effects; hence, they are less preferred. Medicinal plants and marine microorganisms represent a vast, mostly untapped reservoir of bioactive compounds for cancer treatment. However, they have several limitations, including nonspecific targeting, weak water solubility and limited therapeutic potential. An alternative option is the use of biopolymeric nanocarriers, which can generate effective targeted treatment therapies when conjugated with natural anticancer compounds. The present review focuses on biopolymeric nanocarriers utilizing natural sources as anticancer drugs with improved tumor-targeting efficiency. This review also covers various natural anticancer compounds, the advantages and disadvantages of natural and synthetic anticancer compounds, the problems associated with natural anticancer drugs and the advantages of biopolymeric nanocarriers over synthetic nanocarriers as drug delivery agents. This review also discusses various biopolymeric nanocarriers for enhancing the controlled delivery of anticancer compounds and the future development of nanomedicines for treating cancer.
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Affiliation(s)
- Vrushali Manoj Hadkar
- School of Biosciences and Technology, Vellore Institute of Technology (VIT) Vellore 632014 Tamil Nadu India
| | - Chirasmita Mohanty
- School of Biosciences and Technology, Vellore Institute of Technology (VIT) Vellore 632014 Tamil Nadu India
| | - Chinnadurai Immanuel Selvaraj
- Department of Genetics and Plant Breeding, VIT School of Agricultural Sciences and Advanced Learning (VAIAL), VIT Vellore 632014 Tamil Nadu India
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2
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Agwa MM, Marzouk RE, Sabra SA. Advances in active targeting of ligand-directed polymeric nanomicelles via exploiting overexpressed cellular receptors for precise nanomedicine. RSC Adv 2024; 14:23520-23542. [PMID: 39071479 PMCID: PMC11273262 DOI: 10.1039/d4ra04069d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 07/11/2024] [Indexed: 07/30/2024] Open
Abstract
Many of the utilized drugs which already exist in the pharmaceutical sector are hydrophobic in nature. These drugs are characterized by being poorly absorbed and difficult to formulate in aqueous environments with low bioavailability, which could result in consuming high and frequent doses in order to fulfil the required therapeutic effect. As a result, there is a decisive demand to find modern alternatives to overcome all these drawbacks. Self-assembling polymeric nanomicelles (PMs) with their unique structure appear to be a fascinating choice as a pharmaceutical carrier system for improving the solubility & bioavailability of many drugs. PMs as drug carriers have many advantages including suitable size, high stability, prolonged circulation time, elevated cargo capacity and controlled therapeutic release. Otherwise, the pathological features of some diseased cells, like cancer, allow PMs with particle size <200 nm to be passively uptaken via enhanced permeability and retention phenomenon (EPR). However, the passive targeting approach was proven to be insufficient in many cases. Consequently, the therapeutic efficiency of these PMs can be further reinforced by enhancing their cellular internalization via incorporating targeting ligands. These targeting ligands can enhance the assemblage of loaded cargos in the intended tissues via receptor-mediated endocytosis through exploiting receptors robustly expressed on the exterior of the intended tissue while minimizing their toxic effects. In this review, the up-to-date approaches of harnessing active targeting ligands to exploit certain overexpressed receptors will be summarized concerning the functionalization of the exterior of PMs for ameliorating their targeting potential in the scope of nanomedicine.
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Affiliation(s)
- Mona M Agwa
- Department of Chemistry of Natural and Microbial Products, Pharmaceutical and Drug Industries Research Institute, National Research Centre 33 El-Behooth St, Dokki Giza 12622 Egypt +202 33370931 +202 33371635
| | - Rehab Elsayed Marzouk
- Medical Biochemistry Department, Faculty of Medicine, Helwan University Helwan Cairo Egypt
| | - Sally A Sabra
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University Alexandria 21526 Egypt
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3
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Hiba IH, Koh JK, Lai CW, Mousavi SM, Badruddin IA, Hussien M, Wong JP. Polyrhodanine-based nanomaterials for biomedical applications: A review. Heliyon 2024; 10:e28902. [PMID: 38633652 PMCID: PMC11021909 DOI: 10.1016/j.heliyon.2024.e28902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/23/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024] Open
Abstract
Rhodanine is a heterocyclic organic compound that has been investigated for its potential biomedical applications, particularly in drug discovery. Rhodanine derivatives have been examined as the medication options for numerous illnesses, including cancer, inflammation, and infectious diseases. Some rhodanine derivatives have also shown promising activity against drug-resistant strains of bacteria and viruses. One of these derivatives is polyrhodanine (PR), a conducting polymer that has gained attention for its biomedical properties. This review article summarises the latest advancements in creating biomaterials based on PR for biosensing, antimicrobial treatments, and anticancer therapies. The distinctive characteristics of PR, such as biocompatibility, biodegradability, and good conductivity, render it an attractive candidate for these applications. The article also explores obstacles and potential future paths for advancing biomaterials made with PR, including synthesis modifications, characterisation techniques, and in vivo evaluation of biocompatibility and efficacy. Overall, as an emerging research topic, this review emphasises the potential of PR as a promising biomaterial for various biomedical applications and provides insights into the contemporary state of research and prospective directions for investigation.
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Affiliation(s)
- Ibrahim Huzyan Hiba
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University of Malaya (UM), 50603, Kuala Lumpur, Malaysia
| | - Jin Kwei Koh
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University of Malaya (UM), 50603, Kuala Lumpur, Malaysia
| | - Chin Wei Lai
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University of Malaya (UM), 50603, Kuala Lumpur, Malaysia
| | - Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taiwan
| | - Irfan Anjum Badruddin
- Mechanical Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
| | - Mohamed Hussien
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Jest Phia Wong
- Harper Elite Sdn Bhd, UG-23, PJ Midtown, Jalan Kemajuan, Seksyen 13, 46200, Petaling Jaya, Selangor Darul Ehsan, Malaysia
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4
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Yang L, Ge J, Wu H, Guo H, Shan J, Zhang G. Phase behavior of colloidal nanoparticles and their enhancement effect on the rheological properties of polymer solutions and gels. RSC Adv 2024; 14:8513-8525. [PMID: 38476173 PMCID: PMC10930260 DOI: 10.1039/d4ra00551a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
The interaction between nanoparticles and polymers has been of great interest in colloidal theory and novel materials. For example, the properties of polyacrylamide solutions and gels, which are usually used for conformance control and water shut-off in oilfields, can be improved with the addition of nanoparticles. This underlying mechanism and its applicability are investigated in this paper. A strong relationship between the phase behaviors of nanoparticles in polymer solutions and their enhancement effect on the rheology of the nanocomposite polymer solutions and gels was observed. Experiment results showed that the stability of nanoparticles was dependent on several factors, including pH, salinity, and polymer type. At neutral pH conditions, the tendency of the aggregation of nanoparticles was strengthened upon increasing the salinity, polymer concentration, and electronegativity of the polymers. Rheological measurements showed that nanoparticles could improve the viscosity of polymer solutions or the fracture stress of gels only if nanoparticles were aggregated in the corresponding systems. In addition, these rheological parameters significantly increased with increasing salinity and nanoparticle concentration. As a result, the mobility ratio of polymer solutions may be increased several times by the addition of nanoparticles. Referring to the gels, their rupture pressure gradient in the ideal model was also found to increase with nanoparticle concentration. In particular, if the nanoparticle concentration was sufficiently high (reaching 2%), the formed gels would not be destroyed by the injected water, but rather functionally act as a porous medium for permeation.
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Affiliation(s)
- Liu Yang
- School of Petroleum Engineering, China University of Petroleum Qingdao Shandong 266580 China
| | - Jiiang Ge
- School of Petroleum Engineering, China University of Petroleum Qingdao Shandong 266580 China
| | - Hao Wu
- Sinopec Shengli Oilfield Petroleum Engineering Technology Research Institute Dongying Shandong 257091 China
| | - Hongbin Guo
- Sinopec Shengli Oilfield Petroleum Engineering Technology Research Institute Dongying Shandong 257091 China
| | - Jingling Shan
- Sinopec Shengli Oilfield Petroleum Engineering Technology Research Institute Dongying Shandong 257091 China
| | - Guicai Zhang
- School of Petroleum Engineering, China University of Petroleum Qingdao Shandong 266580 China
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Fazeli M, Mukherjee S, Baniasadi H, Abidnejad R, Mujtaba M, Lipponen J, Seppälä J, Rojas OJ. Lignin beyond the status quo: recent and emerging composite applications. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2024; 26:593-630. [PMID: 38264324 PMCID: PMC10802143 DOI: 10.1039/d3gc03154c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/30/2023] [Indexed: 01/25/2024]
Abstract
The demand for biodegradable materials across various industries has recently surged due to environmental concerns and the need for the adoption of renewable materials. In this context, lignin has emerged as a promising alternative, garnering significant attention as a biogenic resource that endows functional properties. This is primarily ascribed to its remarkable origin and structure that explains lignin's capacity to bind other molecules, reinforce composites, act as an antioxidant, and endow antimicrobial effects. This review summarizes recent advances in lignin-based composites, with particular emphasis on innovative methods for modifying lignin into micro and nanostructures and evaluating their functional contribution. Indeed, lignin-based composites can be tailored to have superior physicomechanical characteristics, biodegradability, and surface properties, thereby making them suitable for applications beyond the typical, for instance, in ecofriendly adhesives and advanced barrier technologies. Herein, we provide a comprehensive overview of the latest progress in the field of lignin utilization in emerging composite materials.
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Affiliation(s)
- Mahyar Fazeli
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Aalto Finland
| | - Sritama Mukherjee
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Aalto Finland
- Division of Fiber and Polymer Technology, CBH, KTH Royal Institute of Technology Teknikringen 56-58 SE-100 44 Stockholm Sweden
| | - Hossein Baniasadi
- Polymer Technology, School of Chemical Engineering, Aalto University Espoo Finland
| | - Roozbeh Abidnejad
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Aalto Finland
| | - Muhammad Mujtaba
- VTT Technical Research Centre of Finland Ltd P.O. Box 1000 Espoo FI-02044 Finland
| | - Juha Lipponen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Aalto Finland
| | - Jukka Seppälä
- Polymer Technology, School of Chemical Engineering, Aalto University Espoo Finland
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Aalto Finland
- Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry, Department of Wood Science, 2360 East Mall, The University of British Columbia Vancouver BC V6T 1Z3 Canada
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6
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Heriyanto ADM, Cho Y, Okamoto N, Abe R, Pandey M, Benten H, Nakamura M. Influence of halogen elements in organic salts on n-type doping of CNT yarn for thermoelectric applications. RSC Adv 2023; 13:22226-22233. [PMID: 37492513 PMCID: PMC10363687 DOI: 10.1039/d3ra03755j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/05/2023] [Indexed: 07/27/2023] Open
Abstract
Doping control of carbon nanotube (CNT) is crucial for thermoelectric (TE) application to maximize the power conversion efficiency. Despite the recent achievement of good air stability by organic salts for n-type carrier doping, their doping mechanism has not been systematically investigated so far. Here, we demonstrate doping of CNT yarn using ammonium salts with different halogen elements (tetra-butylammonium salts, TBAX where X = Cl, Br, or I) through the dipping technique. By changing the halogen element, we specifically investigated the halogen effect in the n-type doping process of CNT. The introduction of each material into the CNT yarn and its doping reaction were then studied by energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. Halogen element was found to affect the excess amount of TBA+ cation in the CNT yarn. The largest amount of excess TBA+ is found in the TBAI-doped yarn, which stabilizes the most amount of negative charge in CNT, enhancing the TE performance and its stability over one month in air. This study discovers the importance of the halogen element in the doping process of CNT-based TE materials by organic salts, simultaneously offering an efficient and stable n-type doping strategy.
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Affiliation(s)
| | - Yongyoon Cho
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
| | - Naofumi Okamoto
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
| | - Ryo Abe
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
| | - Manish Pandey
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
| | - Hiroaki Benten
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
| | - Masakazu Nakamura
- Division of Materials Science, Nara Institute of Science and Technology 8916-5 Takayamacho Ikoma Nara 630-0192 Japan
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Sulastri E, Lesmana R, Zubair MS, Abdelwahab Mohammed AF, Elamin KM, Wathoni N. Ulvan/Silver nanoparticle hydrogel films for burn wound dressing. Heliyon 2023; 9:e18044. [PMID: 37483826 PMCID: PMC10362238 DOI: 10.1016/j.heliyon.2023.e18044] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/25/2023] Open
Abstract
Ulvan is a polysaccharide from green algae that shows good hydrogel film dressing characteristics. Silver nanoparticles (AgNP) can be incorporated into the hydrogel film to improve antibacterial properties and provide a potential burn treatment. In this study, we developed a novel hydrogel film wound dressing composed of ulvan and silver nanoparticles. Two concentrations (0.5 mM and 1 mM) of silver nitrate were used to produce ulvan-silver nanoparticles hydrogel film (UHF-AgNP0.5 and UHF-AgNP1), respectively. The physicochemical characteristics of the hydrogel films were evaluated, including particle size, zeta potential, Fourier transform infrared (FTIR), X-ray diffractometry (XRD), scanning electron microscope and energy-dispersive X-ray (SEM-EDX). Furthermore, the in vitro antimicrobial activity, and second-degree burn wound healing test were evaluated. The UHF-AgNP0.5 showed the highest antimicrobial activity compared to UHF-AgNP1 and UHF film. Meanwhile, an in vivo study using Wistar rats induced second-degree burns showed that UHF-AgNP0.5 significantly accelerated the healing process by regulating the inflammatory process, increasing re-epithelialization, and improving the vascularization process. Ulvan-silver nanoparticle hydrogel films have the ability to accelerate the healing of second-degree burns and are potential candidates for wound dressings.
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Affiliation(s)
- Evi Sulastri
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45363, Indonesia
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Tadulako, Palu, 94119, Indonesia
| | - Ronny Lesmana
- Department of Anatomy, Physiology and Biology Cell, Faculty of Medicine, Universitas Padjadjaran, Sumedang, 45363, Indonesia
| | - Muhammad Sulaiman Zubair
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Tadulako, Palu, 94119, Indonesia
| | | | - Khaled M. Elamin
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45363, Indonesia
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Qi T, Yang D, Chen X, Ke W, Qiu M, Fan Y. Sulfonated ceramic membranes with antifouling performance for the filtration of BSA-containing systems. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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9
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Uyor UO, Popoola API, Popoola OO, Aigbodion VS, Nwoke OA. Nanomechanical and thermomechanical evaluation of polypropylene nanocomposites containing functionalized boron nitride decorated with barium titanate. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2096468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Uwa O. Uyor
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, South Africa
- Department of Metallurgical and Materials Engineering, University of Nigeria, Nsukka, Nigeria
- Africa Centre of Excellence on Sustainable Power and Energy Development, University of Nigeria, Nsukka, Nigeria
| | - Abimbola Patricia I. Popoola
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, South Africa
| | - Olawale O. Popoola
- Department of Electrical Engineering, Tshwane University of Technology, Pretoria, South Africa
- Center for Energy and Electrical Power, Tshwane University of Technology, Pretoria, South Africa
| | - Victor S. Aigbodion
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, South Africa
- Department of Metallurgical and Materials Engineering, University of Nigeria, Nsukka, Nigeria
- Africa Centre of Excellence on Sustainable Power and Energy Development, University of Nigeria, Nsukka, Nigeria
| | - Oji A. Nwoke
- Department of Agricultural and Bioresources Engineering, University of Nigeria, Nsukka, Nigeria
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Pöschl M, Gopi Sathi S, Stoček R. Tuning the Curing Efficiency of Conventional Accelerated Sulfur System for Tailoring the Properties of Natural Rubber/Bromobutyl Rubber Blends. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8466. [PMID: 36499962 PMCID: PMC9740831 DOI: 10.3390/ma15238466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The state of cure and the vulcanizate properties of a conventional accelerated sulfur (CV) cured 50/50 blend of natural rubber (NR) and bromobutyl rubber (BIIR) were inferior. However, this blend exhibits a higher extent of cure with remarkable improvements in its mechanical properties, particularly the tensile strength, modulus and hardness after curing with a combination of accelerated sulfur and three parts per hundred rubber (phr) of a bismaleimide (MF3). Moreover, with the use of 0.25 phr of dicumyl peroxide (DCP) along with the CV/MF3 system, the compression set property of the CV-only cured blend could be reduced from 68% to 15%. The enhanced compatibility between NR and BIIR with the aid of bismaleimide via the Diels-Alder reaction was identified as the primary reason for the improved cure state and the mechanical properties. However, the incorporation of a certain amount of bismaleimide as a crosslink in the NR phase of the blend, via a radical initiated crosslinking process by the action of DCP, is responsible for the improved compression set properties.
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11
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Nazari S, Abdelrasoul A. Impact of Membrane Modification and Surface Immobilization Techniques on the Hemocompatibility of Hemodialysis Membranes: A Critical Review. MEMBRANES 2022; 12:1063. [PMID: 36363617 PMCID: PMC9698264 DOI: 10.3390/membranes12111063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Despite significant research efforts, hemodialysis patients have poor survival rates and low quality of life. Ultrafiltration (UF) membranes are the core of hemodialysis treatment, acting as a barrier for metabolic waste removal and supplying vital nutrients. So, developing a durable and suitable membrane that may be employed for therapeutic purposes is crucial. Surface modificationis a useful solution to boostmembrane characteristics like roughness, charge neutrality, wettability, hemocompatibility, and functionality, which are important in dialysis efficiency. The modification techniques can be classified as follows: (i) physical modification techniques (thermal treatment, polishing and grinding, blending, and coating), (ii) chemical modification (chemical methods, ozone treatment, ultraviolet-induced grafting, plasma treatment, high energy radiation, and enzymatic treatment); and (iii) combination methods (physicochemical). Despite the fact that each strategy has its own set of benefits and drawbacks, all of these methods yielded noteworthy outcomes, even if quantifying the enhanced performance is difficult. A hemodialysis membrane with outstanding hydrophilicity and hemocompatibility can be achieved by employing the right surface modification and immobilization technique. Modified membranes pave the way for more advancement in hemodialysis membrane hemocompatibility. Therefore, this critical review focused on the impact of the modification method used on the hemocompatibility of dialysis membranes while covering some possible modifications and basic research beyond clinical applications.
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Affiliation(s)
- Simin Nazari
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
| | - Amira Abdelrasoul
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
- Department of Chemical and Biological Engineering, College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
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12
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Chokwe RC, Kebede TG, Dube S, Nindi MM. Fabrication of electrospun Mondia whitei/PVA nanofibres: application in the removal of acidic drugs. Heliyon 2022; 8:e11075. [PMID: 36281375 PMCID: PMC9586902 DOI: 10.1016/j.heliyon.2022.e11075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/15/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
Novel electrospun Mondia whitei/PVA blend nanofibres were fabricated for potential water treatment applications by blending a natural polymer extracted from Mondia whitei (MW) roots with poly (vinyl alcohol) (PVA). The fabricated nanofibres were shown to have a smooth and uniform morphology with an average diameter of 99 ± 0.025 nm. The FTIR, XPS, XRD, and TGA characterisation results indicated changes in functional groups, crystallinity, and thermal stability of the Mondia whitei/PVA blend nanofibres, as compared to the original material. This finding confirmed that the polymers interacted through hydrogen bonding of MW and hydroxyl groups of PVA. The performance of the fabricated nanofibres was investigated for the removal of acidic drugs from spiked water samples. Factors (concentration of acidic drugs, dosage of the nanofibers and contact time) which affect the removal efficiency of the nanofibres were optimised using ultrapure water. Using the nanofibres, 100% removal efficiency for acidic drugs (aspirin, ketoprofen, fenoprofen, diclofenac, and ibuprofen) was achieved. The removal efficiency of the influent wastewater was 76, 89, 97, 93 and 94% for aspirin, ketoprofen, fenoprofen, diclofenac and ibuprofen, respectively, while the removal efficiency of the effluent was 86, 96, 97, 97 and 95% for aspirin, ketoprofen, fenoprofen, diclofenac and ibuprofen, respectively.
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Affiliation(s)
- Ramakwala Christinah Chokwe
- Chemistry Department, Science Campus, University of South Africa, Corner Christiaan De Wet Road and Pioneer Avenue, Florida 1709, South Africa
| | - Temesgen Girma Kebede
- Chemistry Department, Science Campus, University of South Africa, Corner Christiaan De Wet Road and Pioneer Avenue, Florida 1709, South Africa
| | - Simiso Dube
- Chemistry Department, Science Campus, University of South Africa, Corner Christiaan De Wet Road and Pioneer Avenue, Florida 1709, South Africa
| | - Mathew Muzi Nindi
- Institute for Nanotechnology and Water Sustainability (iNanoWS), Science Campus, University of South Africa, Corner Christiaan De Wet Road and Pioneer Avenue, Florida 1709, South Africa,Corresponding author.
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Zaidi SA, Mohamed M, Deyab N. A simple method for developing efficient room temperature reduced graphene oxide-coated polyurethane sponge and cotton for oil-water separation. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2074862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Shabi Abbas Zaidi
- Analytical Chemistry Program, Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Maimoona Mohamed
- Analytical Chemistry Program, Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Nada Deyab
- Analytical Chemistry Program, Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
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14
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Jacob LI, Pauer W, Schroeter B. Influence of redox initiator component ratios on the emulsion copolymerisation of vinyl acetate and neodecanoic acid vinyl ester. RSC Adv 2022; 12:14197-14208. [PMID: 35558856 PMCID: PMC9092359 DOI: 10.1039/d2ra01811j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/03/2022] [Indexed: 11/21/2022] Open
Abstract
Redox initiated emulsion polymerisation of vinyl acetate and neodecanoic acid vinyl ester was investigated at temperatures ranging from -1 °C to 87 °C (initiation temperature between -1 °C and 60 °C), using varying molar ratios of the following redox components: l-ascorbic acid, tert-butyl hydroperoxide and ammonium iron(iii) sulfate dodecahydrate as a catalyst. The high flexibility of redox initiators enables product properties, as well as space-time-yield, to be adjusted as required. Polymers being products by process, it was presumed that modifying the conversion rate would lead to a different product. However, it was shown that the reaction rate is adjustable by varying the catalyst amount without changing the product properties, such as molecular weight, particle size, glass transition temperature and polymer structure, while reducing the overall process time by 40-86% (at equimolar ratios of reducing and oxidising agent). In contrast, variation of the tert-butyl hydroperoxide content resulted in changes of the molecular weight. The influence of the initiation temperature and of the redox system on the reaction rate was determined, enabling control over the reaction rate in the whole temperature range. Meanwhile, overall process times of approximately 2-240 min and high conversions of 90-99% could be achieved. Statistical modelling confirmed the results and facilitated predictions, enabling the conversion rate to be adjusted to the desired properties. The possibility of being able to adjust the conversion rate and product properties independently of each other creates additional degrees of freedom in process design.
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Affiliation(s)
- Laurence Isabelle Jacob
- Institute for Technical and Macromolecular Chemistry, University of Hamburg Bundesstraße 45 20146 Hamburg Germany
| | - Werner Pauer
- Institute for Technical and Macromolecular Chemistry, University of Hamburg Bundesstraße 45 20146 Hamburg Germany
| | - Baldur Schroeter
- Institute of Thermal Separation Processes, Hamburg University of Technology Eißendorfer Straße 38 21073 Hamburg Germany +49 40 42878 3962
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15
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Calvillo-Muñoz EY, Vega-Paz A, Guzman-Lucero D, Lijanova IV, Olivares-Xometl O, Likhanova NV. Synthesis of water-soluble ionic terpolymers by inverse microemulsion and solution polymerization methods. RSC Adv 2022; 12:12273-12282. [PMID: 35480365 PMCID: PMC9036531 DOI: 10.1039/d2ra01173e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/13/2022] [Indexed: 11/30/2022] Open
Abstract
The synthesis of terpolymers can lead to very interesting combinations of monomers, which can affect the solubility of the polymer, its thermal stability or resistance in saline aqueous media. Free-radical inverse microemulsion and solution polymerization techniques were used to prepare water-soluble acrylamide-N-vinylpyrrolidone-(vinylbenzyl)trimethylammonium chloride terpolymers. The formulation of the polymerizable microemulsion was optimized by using the screening of surfactant percentage and HLB concept. The influence of synthesis temperature on the terpolymer composition and molecular weight was investigated. The reactions were carried out at 60, 70, and 75 °C for the microemulsion technique and at 40, 50, and 55 °C for the solution polymerization technique. The reaction products from both processes were water-soluble polymers, and the two techniques reached high conversions and molecular masses. Maximal molecular weights were displayed by terpolymers prepared by the solution method at 40 °C (959, 840 g mol−1) and the inverse microemulsion method at 60 °C (795, 994 g mol−1). According to NMR analysis, the highest amount of (vinylbenzyl) trimethylammonium chloride was incorporated into the terpolymer structure by the inverse microemulsion method. In contrast, the solution method yielded higher contents of acrylamide and N-vinylpyrrolidone. The viscosity properties of the terpolymers in aqueous solutions were directly correlated to their molecular weight and synthesis conditions. Terpolymers based on acrylamide, N-vinylpyrrolidone and (vinylbenzyl)trimethylammonium chloride (VBTA) were synthesized using inverse microemulsion and solution methods. The microemulsion promoted the incorporation of VBTA in the terpolymer structure.![]()
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Affiliation(s)
- Evelyn Y Calvillo-Muñoz
- Instituto Politécnico Nacional, CIITEC Cerrada Cecati S/N, Colonia Santa Catarina de Azcapotzalco CP 02250 CDMX México
| | - Araceli Vega-Paz
- Instituto Mexicano del Petróleo Eje Central Norte Lázaro Cárdenas No. 152, col. San Bartolo Atepehuacan, G. A. Madero 07730 CDMX México
| | - Diego Guzman-Lucero
- Instituto Mexicano del Petróleo Eje Central Norte Lázaro Cárdenas No. 152, col. San Bartolo Atepehuacan, G. A. Madero 07730 CDMX México
| | - Irina V Lijanova
- Instituto Politécnico Nacional, CIITEC Cerrada Cecati S/N, Colonia Santa Catarina de Azcapotzalco CP 02250 CDMX México
| | - Octavio Olivares-Xometl
- Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química Av. San Claudio y 18 Sur, Ciudad Universitaria. Col. San Manuel 72570 Puebla México
| | - Natalya V Likhanova
- Instituto Mexicano del Petróleo Eje Central Norte Lázaro Cárdenas No. 152, col. San Bartolo Atepehuacan, G. A. Madero 07730 CDMX México
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16
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Yang GG, Choi HJ, Han KH, Kim JH, Lee CW, Jung EI, Jin HM, Kim SO. Block Copolymer Nanopatterning for Nonsemiconductor Device Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12011-12037. [PMID: 35230079 DOI: 10.1021/acsami.1c22836] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Block copolymer (BCP) nanopatterning has emerged as a versatile nanoscale fabrication tool for semiconductor devices and other applications, because of its ability to organize well-defined, periodic nanostructures with a critical dimension of 5-100 nm. While the most promising application field of BCP nanopatterning has been semiconductor devices, the versatility of BCPs has also led to enormous interest from a broad spectrum of other application areas. In particular, the intrinsically low cost and straightforward processing of BCP nanopatterning have been widely recognized for their large-area parallel formation of dense nanoscale features, which clearly contrasts that of sophisticated processing steps of the typical photolithographic process, including EUV lithography. In this Review, we highlight the recent progress in the field of BCP nanopatterning for various nonsemiconductor applications. Notable examples relying on BCP nanopatterning, including nanocatalysts, sensors, optics, energy devices, membranes, surface modifications and other emerging applications, are summarized. We further discuss the current limitations of BCP nanopatterning and suggest future research directions to open up new potential application fields.
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Affiliation(s)
- Geon Gug Yang
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Hee Jae Choi
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Kyu Hyo Han
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Jang Hwan Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Chan Woo Lee
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Edwin Ino Jung
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Hyeong Min Jin
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sang Ouk Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
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17
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Wang Y, Yang H, Yang Y, Zhu L, Zeng Z, Liu S, Li Y, Liang Z. Poly(vinylidene fluoride) membranes with underwater superoleophobicity for highly efficient separation of oil-in-water emulsions in resisting fouling. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120298] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Lindberg GCJ, Cui X, Durham M, Veenendaal L, Schon BS, Hooper GJ, Lim KS, Woodfield TBF. Probing Multicellular Tissue Fusion of Cocultured Spheroids-A 3D-Bioassembly Model. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2103320. [PMID: 34632729 PMCID: PMC8596109 DOI: 10.1002/advs.202103320] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Indexed: 05/02/2023]
Abstract
While decades of research have enriched the knowledge of how to grow cells into mature tissues, little is yet known about the next phase: fusing of these engineered tissues into larger functional structures. The specific effect of multicellular interfaces on tissue fusion remains largely unexplored. Here, a facile 3D-bioassembly platform is introduced to primarily study fusion of cartilage-cartilage interfaces using spheroids formed from human mesenchymal stromal cells (hMSCs) and articular chondrocytes (hACs). 3D-bioassembly of two adjacent hMSCs spheroids displays coordinated migration and noteworthy matrix deposition while the interface between two hAC tissues lacks both cells and type-II collagen. Cocultures contribute to increased phenotypic stability in the fusion region while close initial contact between hMSCs and hACs (mixed) yields superior hyaline differentiation over more distant, indirect cocultures. This reduced ability of potent hMSCs to fuse with mature hAC tissue further underlines the major clinical challenge that is integration. Together, this data offer the first proof of an in vitro 3D-model to reliably study lateral fusion mechanisms between multicellular spheroids and mature cartilage tissues. Ultimately, this high-throughput 3D-bioassembly model provides a bridge between understanding cellular differentiation and tissue fusion and offers the potential to probe fundamental biological mechanisms that underpin organogenesis.
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Affiliation(s)
- Gabriella C. J. Lindberg
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Xiaolin Cui
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Mitchell Durham
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Laura Veenendaal
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Benjamin S. Schon
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Gary J. Hooper
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic SurgeryUniversity of Otago Christchurch2 Riccarton AvenueChristchurch8011New Zealand
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19
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Tarekegn MM, Balakrishnan RM, Hiruy AM, Dekebo AH. Removal of methylene blue dye using nano zerovalent iron, nanoclay and iron impregnated nanoclay - a comparative study. RSC Adv 2021; 11:30109-30131. [PMID: 35480266 PMCID: PMC9040909 DOI: 10.1039/d1ra03918k] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 08/24/2021] [Indexed: 11/24/2022] Open
Abstract
There has been an increasing challenge from the emission of methylene blue (MB) dye-containing wastewater and its management methods in industry. The sorption process is one conventionally used method. In this study, nanoclay, nano zero valent iron (nZVI), and iron impregnated nanoclay were prepared and studied for the removal of MB dye in batch mode. The effects of operating parameters like pH, dye concentration, sorbent dosage, and contact time were investigated and optimized. The nZVI, nanoclay, and iron impregnated nanoclay sorbents showed zeta potentials of -32.1, -53.4, and -40.7 mV, respectively. All the nano adsorbents were crystalline. The nanoclay was characterized by an average surface area, pore volume and pore diameter of 43.49 m2 g-1, 0.104 cm3 g-1 and 2.806 nm, respectively. nZVI showed a surface area of 47.125 m2 g-1, pore volume of 0.119 cm3 g-1, and pore diameter of 3.291 nm. And iron impregnated nanoclay showed a surface area of 73.110 m2 g-1 with a pore volume of 15 cm3 g-1 and a pore diameter size of 3.83 nm. A Langmuir EXT nitrogen gas adsorption isotherm (R 2 ∼ 0.99) was the best fit. The thermodynamics parameters, such as ΔG° (-12.64 to -0.63 kJ mol-1), ΔH° (+0.1 to +62.15 kJ mol-1) and ΔS° (+0.10 to +0.22 kJ mol-1), confirmed that a spontaneous and endothermic adsorption process took place at a high rate of disorder. Iron impregnated nanoclay showed higher negative Gibbs free energy (-12.64 kJ mol-1), higher enthalpy change (+62.5 kJ mol-1) and entropy (+0.22 kJ mol-1) and gave a better MB removal performance. In addition, the lower negative heat of enthalpy for all adsorptions proved the dominance of physisorption. The methylene blue adsorption isotherm on nZVI and nanoclay showed the best fit with the Freundlich isotherm model with correlation coefficients (R 2) ∼0.98 and 0.99, respectively. Whereas the Langmuir adsorption isotherm was the best fit for iron impregnated nanoclay (R 2 ∼ 0.98). The adsorption activities of nZVI, nanoclay and iron impregnated nanoclay were fitted to a pseudo-second-order kinetic model with correlation coefficients (R 2) of 0.999, 0.997 and 0.983, respectively. The optimal pH 7.0 (RE: 99.1 ± 0.73%), initial MB concentration 40 ppm (RE: 99.9 ± 0.03%), contact time 120 min (RE: 99.9 ± 0.9%), and adsorbent dose 80 (99.9 ± 0.03%) were obtained for iron impregnated nanoclay. The optimal operational parameters of nanoclay and nZVI, respectively, were pH 11.0 and 13.0, initial MB concentration 20 and 20 ppm, adsorbent dose 100 and 140 mg, and contact time 120 and 140 min. In general, iron impregnated nanoclay has shown promising cationic dye adsorbance for industrial applications; but a recyclability test is suggested before scale-up.
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Affiliation(s)
- Mekonnen Maschal Tarekegn
- Centre for Environmental Sciences, Addis Ababa University King George VI St. Addis Ababa Ethiopia +251911879718
| | | | - Andualem Mekonnen Hiruy
- Centre for Environmental Sciences, Addis Ababa University King George VI St. Addis Ababa Ethiopia +251911879718
| | - Ahmed Hussen Dekebo
- Centre for Environmental Sciences, Addis Ababa University King George VI St. Addis Ababa Ethiopia +251911879718
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20
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Nuutinen EM, Virtanen T, Lantto R, Vähä-Nissi M, Jääskeläinen AS. Ductile keratin films from deep eutectic solvent-fractionated feathers. RSC Adv 2021; 11:27512-27522. [PMID: 35480675 PMCID: PMC9037859 DOI: 10.1039/d1ra05123g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Feathers, an industrial by-product, are a valuable source of keratin that could be used, for example, in the preparation of films for biomedical and packaging applications. However, the utilisation of feather keratin requires scalable processes to convert feathers into a feasible keratin stream. This paper shows how deep eutectic solvent (DES) fractionated feathers could be converted into strong films. In the DES fractionation process, two keratin fractions with different molecular weights were obtained. The films made of the high molecular weight keratin fraction had better mechanical properties and stability against moisture than the films made of the low molecular weight keratin fraction. The strength properties were further improved by cross-linking the keratin with diglycidyl ether enabling the formation of a uniform keratin network, whereas glutaraldehyde did not show a clear cross-linking effect. These keratin films could be used, for example, in food packaging or medical applications such as wound care.
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Affiliation(s)
- Emmi-Maria Nuutinen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Tommi Virtanen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Raija Lantto
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Mika Vähä-Nissi
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
| | - Anna-Stiina Jääskeläinen
- Sustainable products and materials, VTT, Technical Research Centre of Finland Tietotie 2 FI-02044 Espoo Finland +358406817126
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21
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Boey JY, Mohamad L, Khok YS, Tay GS, Baidurah S. A Review of the Applications and Biodegradation of Polyhydroxyalkanoates and Poly(lactic acid) and Its Composites. Polymers (Basel) 2021; 13:1544. [PMID: 34065779 PMCID: PMC8150976 DOI: 10.3390/polym13101544] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Overconsumption of plastic goods and improper handling of petroleum-derived plastic waste have brought a plethora of negative impacts to the environment, ecosystem and human health due to its recalcitrance to degradation. These drawbacks become the main driving force behind finding biopolymers with the degradable properties. With the advancement in biopolymer research, polyhydroxyalkanoate (PHA) and poly(lacyic acid) (PLA) and its composites have been alluded to as a potential alternative to replace the petrochemical counterpart. This review highlights the current synthesis process and application of PHAs and PLA and its composites for food packaging materials and coatings. These biopolymers can be further ameliorated to enhance their applicability and are discussed by including the current commercially available packaging products. Factors influencing biodegradation are outlined in the latter part of this review. The main aim of this review article is to organize the scattered available information on various aspects of PHAs and PLA, and its composites for packaging application purposes. It is evident from a literature survey of about 140 recently published papers from the past 15 years that PLA and PHA show excellent physical properties as potential food packaging materials.
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Affiliation(s)
| | | | | | | | - Siti Baidurah
- School of Industrial Technology, Universiti Sains Malaysia, Minden 11800, Malaysia; (J.Y.B.); (L.M.); (Y.S.K.); (G.S.T.)
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22
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Chen S, Chen Y, Wang Z, Chen H, Fan D. Renewable bio-based adhesive fabricated from a novel biopolymer and soy protein. RSC Adv 2021; 11:11724-11731. [PMID: 35423652 PMCID: PMC8695950 DOI: 10.1039/d1ra00766a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/16/2021] [Indexed: 11/21/2022] Open
Abstract
In this study, a bio-based soy protein adhesive derived from environmentally friendly and renewable enzymatic hydrolysis lignin (EHL), epoxidized soybean oil (ESO), and soy protein isolate (SPI), was successfully prepared. A novel biopolymer (EHL-ESO), as a multifunctional crosslinker, was firstly synthesized from modified EHL and ESO, and then crosslinked with soy protein isolate to obtain a bio-based soy protein adhesive. The structure, thermal properties, and adhesion performance of the obtained soy protein adhesives were determined by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and wet shear strength. The maximum degradation temperature of SPI/EHL-ESO adhesives (332-343 °C) was higher than that of the pristine SPI adhesive (302 °C). Moreover, plywood bonded by the modified adhesive reached a maximum wet shear strength value of 1.07 MPa, a significant increase of 101.8% from the plywood bonded by pristine SPI adhesive. The enhancements in the thermal stability and wet shear strength were attributed to the formation of a dense crosslinking network structure. This work not only highlights the potential to replace petroleum-based polymers, but also presents a green approach to fabricate fully bio-based soy protein adhesive for preparing all-biomass wood composite materials.
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Affiliation(s)
- Shiqing Chen
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091 China +86-10-62881937 +86-18500236090
| | - Yuan Chen
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091 China +86-10-62881937 +86-18500236090
| | - Zongtao Wang
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091 China +86-10-62881937 +86-18500236090
| | - Huan Chen
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091 China +86-10-62881937 +86-18500236090
| | - Dongbin Fan
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091 China +86-10-62881937 +86-18500236090
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23
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Olmos D, González-Benito J. Polymeric Materials with Antibacterial Activity: A Review. Polymers (Basel) 2021; 13:613. [PMID: 33670638 PMCID: PMC7922637 DOI: 10.3390/polym13040613] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 12/21/2022] Open
Abstract
Infections caused by bacteria are one of the main causes of mortality in hospitals all over the world. Bacteria can grow on many different surfaces and when this occurs, and bacteria colonize a surface, biofilms are formed. In this context, one of the main concerns is biofilm formation on medical devices such as urinary catheters, cardiac valves, pacemakers or prothesis. The development of bacteria also occurs on materials used for food packaging, wearable electronics or the textile industry. In all these applications polymeric materials are usually present. Research and development of polymer-based antibacterial materials is crucial to avoid the proliferation of bacteria. In this paper, we present a review about polymeric materials with antibacterial materials. The main strategies to produce materials with antibacterial properties are presented, for instance, the incorporation of inorganic particles, micro or nanostructuration of the surfaces and antifouling strategies are considered. The antibacterial mechanism exerted in each case is discussed. Methods of materials preparation are examined, presenting the main advantages or disadvantages of each one based on their potential uses. Finally, a review of the main characterization techniques and methods used to study polymer based antibacterial materials is carried out, including the use of single force cell spectroscopy, contact angle measurements and surface roughness to evaluate the role of the physicochemical properties and the micro or nanostructure in antibacterial behavior of the materials.
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Affiliation(s)
- Dania Olmos
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
| | - Javier González-Benito
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
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24
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Sbardella F, Martinelli A, Di Lisio V, Bavasso I, Russo P, Tirillò J, Sarasini F. Surface Modification of Basalt Fibres with ZnO Nanorods and Its Effect on Thermal and Mechanical Properties of PLA-Based Composites. Biomolecules 2021; 11:200. [PMID: 33535423 PMCID: PMC7912728 DOI: 10.3390/biom11020200] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 11/29/2022] Open
Abstract
The composites based on basalt fibres and poly(lactic acid) (PLA) show promising applications in biomedical and automotive fields, but their mechanical performance is still largely hindered by poor interfacial properties. Zinc oxide nanorods have been successfully used to tune the PLA/basalt fibre interface by growing them on commercially available basalt fabrics. The hierarchical fibres significantly enhanced the mechanical properties of PLA-based composites, especially their flexural strength and stiffness. These values are 26% and 22% higher than those of unmodified basalt/PLA composites, and 24% and 34% higher than those of glass/PLA composites used as a baseline. The increase in tensile and flexural properties hinges on the mechanical interlocking action promoted by ZnO nanorods and on the creation of a compact transcrystallinity structure. A degradation of PLA matrix was detected but it was positively counteracted by the better interfacial stress transfer. This study offers a novel approach for modifying the fibre-matrix interface of biocomposites intended for high-performance applications.
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Affiliation(s)
- Francesca Sbardella
- Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma & UdR INSTM, Via Eudossiana 18, 00184 Roma, Italy; (I.B.); (J.T.)
| | - Andrea Martinelli
- Department of Chemistry, Sapienza-Università di Roma, P.le A. Moro, 5, 00185 Roma, Italy;
| | - Valerio Di Lisio
- Department of Chemistry, Sapienza-Università di Roma, P.le A. Moro, 5, 00185 Roma, Italy;
| | - Irene Bavasso
- Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma & UdR INSTM, Via Eudossiana 18, 00184 Roma, Italy; (I.B.); (J.T.)
| | - Pietro Russo
- Institute for Polymers, Composites, and Biomaterials, National Council of Research, Via Campi Flegrei 34, 80078 Pozzuoli, Italy;
| | - Jacopo Tirillò
- Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma & UdR INSTM, Via Eudossiana 18, 00184 Roma, Italy; (I.B.); (J.T.)
| | - Fabrizio Sarasini
- Department of Chemical Engineering Materials Environment, Sapienza-Università di Roma & UdR INSTM, Via Eudossiana 18, 00184 Roma, Italy; (I.B.); (J.T.)
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25
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Tian G, Fan D, Feng X, Zhou H. Thriving artificial underwater drag-reduction materials inspired from aquatic animals: progresses and challenges. RSC Adv 2021; 11:3399-3428. [PMID: 35424313 PMCID: PMC8694127 DOI: 10.1039/d0ra08672j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/14/2020] [Indexed: 02/01/2023] Open
Abstract
In the past decades, drag-reduction surfaces have attracted more and more attention due to their potentiality and wide applications in various fields such as traffic, energy transportation, agriculture, textile industry, and military. However, there are still some drag-reduction materials that need to be deeply explored. Fortunately, natural creatures always have the best properties after long-term evolution; aquatic organisms have diversified surface microstructures and drag-reducing materials, which provide design templates for the development of thriving artificial underwater drag-reduction materials. Aquatic animals are tamed by the current while fighting against the water, and thus have excellent drag reduction that is unparalleled in water. Inspired by biological principles, using aquatic animals as a bionic object to develop and reduce frictional resistance in fluids has attracted more attention in the past few years. More and more aquatic animals bring new inspiration for drag-reduction surfaces and a tremendous amount of research effort has been put into the study of surface drag-reduction, with an aim to seek the surface structure with the best drag-reduction effect and explore the drag-reduction mechanism. This present paper reviews the research on drag-reduction surfaces inspired by aquatic animals, including sharks, dolphins, and other aquatic animals. Aquatic animals as bionic objects are described in detail, with a discussion on the drag-reduction mechanism and drag-reduction effect to understand the development of underwater drag-reduction fully. In bionic manufacturing, the effective combination of various preparation methods is summarized. Moreover, bionic surfaces are briefly explained in terms of traffic, energy sources, sports, and agriculture. In the end, both existing problems in bionic research and future research prospects are proposed. This paper may provide a better and more comprehensive understanding of the current research status of aquatic animals-inspired drag reduction.
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Affiliation(s)
- Guizhong Tian
- College of Mechanical Engineering, Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology Zhenjiang P. R. China
| | - Dongliang Fan
- College of Mechanical Engineering, Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology Zhenjiang P. R. China
| | - Xiaoming Feng
- College of Mechanical Engineering, Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology Zhenjiang P. R. China
| | - Honggen Zhou
- College of Mechanical Engineering, Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology Zhenjiang P. R. China
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26
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A Study of Physico-Mechanical Properties of Hollow Glass Bubble, Jute Fibre and Rubber Powder Reinforced Polypropylene Compounds with and without MuCell ® Technology for Lightweight Applications. Polymers (Basel) 2020; 12:polym12112664. [PMID: 33198067 PMCID: PMC7697613 DOI: 10.3390/polym12112664] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 11/23/2022] Open
Abstract
Lightweighting is one of the key solutions to reduce the carbon footprint of vehicles. Nowadays, it is still challenging to achieve this target because there is a conflict between the cost and final material performance, as well as the fact that many lightweight solutions are restricted to laboratory or small-scale production. In this work, a commercially feasible strategy was adopted to fabricate materials for lightweight applications. Hollow glass bubbles, jute fibres, and rubber powder were used as fillers with polypropylene as the base polymer. Various samples were fabricated using conventional and MuCell® injection moulding. Their performance was then characterised by their density and morphological, mechanical, and rheological properties. A comparison among hybrid fillers/polypropylene compounds with and without MuCell® technology was investigated. The filler hybridisation resulted in not only a density reduction of up to approximately 10%, but also improved tensile/flexural modulus and strength. The use of MuCell® led to a further reduction in density of roughly 10%. Meanwhile, although some compounds fabricated by MuCell® exhibited some deterioration in their tensile yield strength, tensile modulus, and impact strength, they maintained acceptable mechanical properties for automotive applications.
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Picard M, Mohanty AK, Misra M. Recent advances in additive manufacturing of engineering thermoplastics: challenges and opportunities. RSC Adv 2020; 10:36058-36089. [PMID: 35517121 PMCID: PMC9057068 DOI: 10.1039/d0ra04857g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/17/2020] [Indexed: 12/12/2022] Open
Abstract
There are many limitations within three-dimensional (3D) printing that hinder its adaptation into industries such as biomedical, cosmetic, processing, automotive, aerospace, and electronics. The disadvantages of 3D printing include the inability of parts to function in weight-bearing applications, reduced mechanical performance from anisotropic properties of printed products, and limited intrinsic material performances such as flame retardancy, thermal stability, and/or electrical conductivity. Many of these shortcomings have prevented the adaptation of 3D printing into product development, especially with few novel researched materials being sold commercially. In many cases, high-performance engineering thermoplastics (ET) provide a basis for increased thermal and mechanical performances to address the shortcomings or limitations of both selective laser sintering and extrusion 3D printing. The first strategy to combat these limitations is to fabricate blends or composites. Novel printing materials have been implemented to reduce anisotropic properties and losses in strength. Additives such as flame retardants generate robust materials with V0 flame retardancy ratings, and compatibilizers can improve thermal or dimensional stability. To serve the electronic industry better, the addition of carbon black at only 4 wt%, to an ET matrix has been found to improve the electrical conductivity by five times the magnitude. Surface modifications such as photopolymerization have improved the usability of ET in automotive applications, whereas the dynamic chemical processes increased the biocompatibility of ET for medical device materials. Thermal resistant foam from polyamide 12 and fly ash spheres were researched and fabricated as possible insulation materials for automotive industries. These works and others have not only generated great potential for additive manufacturing technologies, but also provided solutions to critical challenges of 3D printing.
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Affiliation(s)
- Maisyn Picard
- School of Engineering, University of Guelph Thornbrough Building Guelph N1G 2W1 ON Canada
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, University of Guelph Crop Science Building Guelph N1G 2W1 ON Canada
| | - Amar K Mohanty
- School of Engineering, University of Guelph Thornbrough Building Guelph N1G 2W1 ON Canada
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, University of Guelph Crop Science Building Guelph N1G 2W1 ON Canada
| | - Manjusri Misra
- School of Engineering, University of Guelph Thornbrough Building Guelph N1G 2W1 ON Canada
- Bioproducts Discovery and Development Centre, Department of Plant Agriculture, University of Guelph Crop Science Building Guelph N1G 2W1 ON Canada
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28
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Parkula V, Berto M, Diacci C, Patrahau B, Di Lauro M, Kovtun A, Liscio A, Sensi M, Samorì P, Greco P, Bortolotti CA, Biscarini F. Harnessing Selectivity and Sensitivity in Electronic Biosensing: A Novel Lab-on-Chip Multigate Organic Transistor. Anal Chem 2020; 92:9330-9337. [PMID: 32483968 PMCID: PMC8007075 DOI: 10.1021/acs.analchem.0c01655] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/02/2020] [Indexed: 01/02/2023]
Abstract
Electrolyte gated organic transistors can operate as powerful ultrasensitive biosensors, and efforts are currently devoted to devising strategies for reducing the contribution of hardly avoidable, nonspecific interactions to their response, to ultimately harness selectivity in the detection process. We report a novel lab-on-a-chip device integrating a multigate electrolyte gated organic field-effect transistor (EGOFET) with a 6.5 μL microfluidics set up capable to provide an assessment of both the response reproducibility, by enabling measurement in triplicate, and of the device selectivity through the presence of an internal reference electrode. As proof-of-concept, we demonstrate the efficient operation of our pentacene based EGOFET sensing platform through the quantification of tumor necrosis factor alpha with a detection limit as low as 3 pM. Sensing of inflammatory cytokines, which also include TNFα, is of the outmost importance for monitoring a large number of diseases. The multiplexable organic electronic lab-on-chip provides a statistically solid, reliable, and selective response on microliters sample volumes on the minutes time scale, thus matching the relevant key-performance indicators required in point-of-care diagnostics.
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Affiliation(s)
- Vitaliy Parkula
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Scriba
Nanotecnologie S.r.l., Via di Corticella 1838, 40128 Bologna, Italy
| | - Marcello Berto
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Chiara Diacci
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Laboratory
of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Sweden
| | - Bianca Patrahau
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- University
of Strasbourg, CNRS, ISIS UMR 70068, Alleé Gaspard Monge, 67000 Strasbourg, France
| | - Michele Di Lauro
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Center
for Translational Neurophysiology of Speech and Communication, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy
| | - Alessandro Kovtun
- Istituto
per la Sintesi Organica e la Fotoreattività, CNR, Via Piero Gobetti, 101, 40129 Bologna, Italy
| | - Andrea Liscio
- Istituto
per la Microelettronica e Microsistemi, CNR, Via del Fosso del
Cavaliere, 100, 00133 Roma, Italy
| | - Matteo Sensi
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Paolo Samorì
- University
of Strasbourg, CNRS, ISIS UMR 70068, Alleé Gaspard Monge, 67000 Strasbourg, France
| | - Pierpaolo Greco
- Scriba
Nanotecnologie S.r.l., Via di Corticella 1838, 40128 Bologna, Italy
| | - Carlo A. Bortolotti
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Fabio Biscarini
- Dipartimento
di Scienze della Vita, Università
degli Studi di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Center
for Translational Neurophysiology of Speech and Communication, Istituto Italiano di Tecnologia, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy
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29
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Khalifa M, Anandhan S, Wuzella G, Lammer H, Mahendran AR. Thermoplastic polyurethane composites reinforced with renewable and sustainable fillers – a review. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1768544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Mohammed Khalifa
- Kompetenzzentrum Holz GmbH, Wood K plus , Altenberger strasse 69, A-4040, Linz, Austria
| | - S. Anandhan
- Department of Metallurgical and Materials Engineering, National Institute of Technology , India
| | - Günter Wuzella
- Kompetenzzentrum Holz GmbH, Wood K plus , Altenberger strasse 69, A-4040, Linz, Austria
| | - Herfried Lammer
- Kompetenzzentrum Holz GmbH, Wood K plus , Altenberger strasse 69, A-4040, Linz, Austria
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30
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Weitkamp RF, Neumann B, Stammler H, Hoge B. Synthesis and Reactivity of the First Isolated Hydrogen-Bridged Silanol-Silanolate Anions. Angew Chem Int Ed Engl 2020; 59:5494-5499. [PMID: 31833629 PMCID: PMC7154667 DOI: 10.1002/anie.201914339] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 11/29/2019] [Indexed: 11/11/2022]
Abstract
We report on the first examples of isolated silanol-silanolate anions, obtained by utilizing weakly coordinating phosphazenium counterions. The silanolate anions were synthesized from the recently published phosphazenium hydroxide hydrate salt with siloxanes. The silanol-silanolate anions are postulated intermediates in the hydroxide-mediated polymerization of aryl and alkyl siloxanes. The silanolate anions are strong nucleophiles because of the weakly coordinating character of the phosphazenium cation, which is perceptible in their activity in polysiloxane depolymerization.
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Affiliation(s)
- Robin F. Weitkamp
- Centrum für Molekulare MaterialienFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
| | - Beate Neumann
- Centrum für Molekulare MaterialienFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
| | - Hans‐Georg Stammler
- Centrum für Molekulare MaterialienFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
| | - Berthold Hoge
- Centrum für Molekulare MaterialienFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
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31
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Liu X, Yuan H, Wang C, Zhang S, Zhang L, Liu X, Liu F, Zhu X, Rohani S, Ching C, Lu J. A novel PVDF/PFSA-g-GO ultrafiltration membrane with enhanced permeation and antifouling performances. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116038] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Wu L, Lin Q, Liu C, Chen W. A Stable Anti-Fouling Coating on PVDF Membrane Constructed of Polyphenol Tannic Acid, Polyethyleneimine and Metal Ion. Polymers (Basel) 2019; 11:E1975. [PMID: 31805641 PMCID: PMC6960656 DOI: 10.3390/polym11121975] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 11/16/2022] Open
Abstract
A hydrophilic and anti-fouling coating layer was constructed on a polyvinylidene fluoride (PVDF) microfiltration membrane by a novel surface modification method. The pristine membrane was firstly coated by (3-chloropropyl) trimethoxysilane/polyethyleneimine and tannic acid. Then, the metal ion was induced on the coating layer to coordinate with tannic acid and polyethyleneimine, forming a more stable and hydrophilic coating on the surface. The membrane's surface morphology and chemical element analysis showed that the Tannic acid/ polyethyleneimine (TA/PEI) coating layer was denser and had more stability after the addition of metal ions, and this may be due to the coordination bond formed between the TA/PEI coating and metal ions. The results of the water contact angle and pure water flux measurements showed that the hydrophilicity and wettability of the modified membranes were improved obviously after introducing the metal ion layers. The anti-fouling performance and stability of the modified membrane were also characterized by the underwater oil contact angle (OCA), the separation efficiency, and the contact angle variation value for before and after the rinsing experiment. The modified membrane showed obvious stability and antifouling. Moreover, the retention rate of some composite membranes could reach 99.6%.
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Affiliation(s)
| | | | | | - Wanyu Chen
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China; (L.W.); (Q.L.); (C.L.)
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33
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Liu J, Zhu X. Isotactic polypropylene toughened with poly(acrylonitrile-butadiene-styrene): compatibilizing role of nano-ZnO. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1599943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jingru Liu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, China
| | - Xinxu Zhu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, China
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34
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Zeng R, Jin BK, Yang ZH, Guan R, Quan C. Preparation of a modified crosslinked chitosan/polyvinyl alcohol blended affinity membrane for purification of His-tagged protein. J Appl Polym Sci 2018. [DOI: 10.1002/app.47347] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rong Zeng
- College of Chemistry and Chemical Engineering, Hubei University; Wuhan 430062 China
| | - Bu-Kun Jin
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology; Wuhan 430081 China
| | - Zhong-Hua Yang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology; Wuhan 430081 China
| | - Rong Guan
- College of Chemistry and Chemical Engineering, Hubei University; Wuhan 430062 China
| | - Can Quan
- Division of Chemical Metrology and Analytical Science; National Institute of Metrology; Beijing 102200 China
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35
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Paik BA, Mane SR, Jia X, Kiick KL. Responsive Hybrid (Poly)peptide-Polymer Conjugates. J Mater Chem B 2017; 5:8274-8288. [PMID: 29430300 PMCID: PMC5802422 DOI: 10.1039/c7tb02199b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
(Poly)peptide-polymer conjugates continue to garner significant interest in the production of functional materials given their composition of natural and synthetic building blocks that confer select and synergistic properties. Owing to opportunities to design predefined architectures and structures with different morphologies, these hybrid conjugates enable new approaches for producing micro- or nanomaterials. Their modular design enables the incorporation of multiple responsive properties into a single conjugate. This review presents recent advances in (poly)peptide-polymer conjugates for drug-delivery applications, with a specific focus on the utility of the (poly)peptide component in the assembly of particles and nanogels, as well as the role of the peptide in triggered drug release.
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Affiliation(s)
- Bradford A Paik
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
| | - Shivshankar R Mane
- The Institude For Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstr. 18, 76128 Karlsruhe, Germany
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE 19716-3106
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE 19716-3106
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
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36
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Abdullayeva N, Sankir M. Influence of Electrical and Ionic Conductivities of Organic Electronic Ion Pump on Acetylcholine Exchange Performance. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E586. [PMID: 28772946 PMCID: PMC5552179 DOI: 10.3390/ma10060586] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/10/2017] [Accepted: 05/18/2017] [Indexed: 11/16/2022]
Abstract
By using an easy and effective method of depositing conjugated polymers (PEDOT:PSS) on flexible substrates, a new design for organic bioelectronic devices has been developed. The purpose was to build up a system that mimics the motion of neurotransmitters in the synaptic cleft by obtaining an electrical to chemical signal transport. Fourier transform infrared (FTIR) spectroscopy and Raman measurements have demonstrated that electrochemical overoxidation region which separates the pristine PEDOT:PSS electrodes and allows ionic conduction has been achieved successfully. The influence of both electrical and ionic conductivities on organic electronic ion pump (OEIP) performances has been studied. The ultimate goal was to achieve the highest equilibrium current density at the lowest applied voltage via enhancing the electrical conductivity of PEDOT:PSS and ionic conductivity of electrochemically overoxidized region. The highest equilibrium current density, which corresponds to 4.81 × 1017 number of ions of acetylcholine was about 41 μA cm-2 observed for the OEIP with the electrical conductivities of 54 S cm-1. This was a threshold electrical conductivity beyond which the OEIP performances were not changed much. Once Nafion™ has been applied for enhancing the ionic conductivity, the equilibrium current density increased about ten times and reached up to 408 μA cm-2. Therefore, it has been demonstrated that the OEIP performance mainly scales with the ionic conductivity. A straightforward method of producing organic bioelectronics is proposed here may provide a clue for their effortless mass production in the near future.
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Affiliation(s)
- Nazrin Abdullayeva
- Department of Materials Science and Nanotechnology Engineering, Tobb University of Economics and Technology, Sogutozu C. No. 43 Sogutozu 06560 Ankara, Turkey.
| | - Mehmet Sankir
- Department of Materials Science and Nanotechnology Engineering, Tobb University of Economics and Technology, Sogutozu C. No. 43 Sogutozu 06560 Ankara, Turkey.
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37
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Ting SRS, Min EH, Lau BKF, Hutvagner G. Acetyl-α-d-mannopyranose-based cationic polymer via RAFT polymerization for lectin and nucleic acid bindings. J Appl Polym Sci 2017. [DOI: 10.1002/app.44947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- S. R. Simon Ting
- Centre for Health Technologies (CHT); Faculty of Engineering and Information Technology, University of Technology Sydney (UTS); Ultimo NSW 2007 Australia
| | - Eun Hee Min
- Centre for Health Technologies (CHT); Faculty of Engineering and Information Technology, University of Technology Sydney (UTS); Ultimo NSW 2007 Australia
| | - Benjamin K. F. Lau
- Centre for Health Technologies (CHT); Faculty of Engineering and Information Technology, University of Technology Sydney (UTS); Ultimo NSW 2007 Australia
| | - Gyorgy Hutvagner
- Centre for Health Technologies (CHT); Faculty of Engineering and Information Technology, University of Technology Sydney (UTS); Ultimo NSW 2007 Australia
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38
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Seto H, Shibuya M, Matsumoto H, Hoshino Y, Miura Y. Glycopolymer monoliths for affinity bioseparation of proteins in a continuous-flow system: glycomonoliths. J Mater Chem B 2017; 5:1148-1154. [DOI: 10.1039/c6tb02930b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Macroporous materials, called glycomonoliths, were prepared from saccharide-containing monomers, and applied for affinity bioseparation of proteins in a continuous-flow system.
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Affiliation(s)
- Hirokazu Seto
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
- Department of Chemical Engineering
| | - Makoto Shibuya
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Hikaru Matsumoto
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Yu Hoshino
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Yoshiko Miura
- Department of Chemical Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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39
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Liu Z, Wickramasinghe SR, Qian X. Membrane chromatography for protein purifications from ligand design to functionalization. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1223133] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Zizhao Liu
- Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | | | - Xianghong Qian
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
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40
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Wang W, Voigt A, Sundmacher K. The interaction of protein-coated bionanoparticles and surface receptors reevaluated: how important is the number of bonds? SOFT MATTER 2016; 12:6451-6462. [PMID: 27411954 DOI: 10.1039/c6sm00995f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Specifically designed bionanoparticles with a function-oriented protein-coating layer interact with self-prepared receptor surfaces as the counterpart. Based on surface plasmon resonance biosensing experiments, a model framework is validated to estimate the number of bonds formed between these bionanoparticles and the receptor surface based on multivalent interactions. Our multi-site kinetic model is able to analyze the adsorption rate constants and the number of bonds from experimental data of natural and synthetic bionanoparticles. The influence of the mass transport on the adsorption kinetics is modeled including a diffusional boundary layer where a helpful analytical solution has been derived. Our model framework extends previous studies to include a higher number of bonds, ranging from 1 up to 1000. An almost linear relationship between the number of bonds and the adsorption amount of bionanoparticles makes the model framework suitable to predict, for example, ligand density and to further assess coating performance. The proposed model framework can serve as a design tool for multivalent interaction experiments under variable process conditions.
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Affiliation(s)
- Wenjing Wang
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstraße 1, D-39106 Magdeburg, Germany.
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